<?php

/*
 * This file is part of SwiftMailer. (c) 2004-2009 Chris Corbyn For the full copyright and license information, please view the LICENSE file that was distributed with this source code.
 */

/**
 * A Simple MIME Header.
 * 
 * @package Swift
 * @subpackage Mime
 * @author Chris Corbyn
 */
class Swift_Mime_Headers_UnstructuredHeader extends Swift_Mime_Headers_AbstractHeader {
	/**
	 * The value of this Header.
	 * 
	 * @var string
	 * @access private
	 */
	private $_value;
	
	/**
	 * Creates a new SimpleHeader with $name.
	 * 
	 * @param string $name        	
	 * @param Swift_Mime_HeaderEncoder $encoder        	
	 * @param Swift_Mime_Grammar $grammar        	
	 */
	public function __construct($name, Swift_Mime_HeaderEncoder $encoder, Swift_Mime_Grammar $grammar) {
		$this->setFieldName ( $name );
		$this->setEncoder ( $encoder );
		parent::__construct ( $grammar );
	}
	
	/**
	 * Get the type of Header that this instance represents.
	 * 
	 * @return int
	 * @see TYPE_TEXT, TYPE_PARAMETERIZED, TYPE_MAILBOX
	 * @see TYPE_DATE, TYPE_ID, TYPE_PATH
	 */
	public function getFieldType() {
		return self::TYPE_TEXT;
	}
	
	/**
	 * Set the model for the field body.
	 * This method takes a string for the field value.
	 * 
	 * @param string $model        	
	 */
	public function setFieldBodyModel($model) {
		$this->setValue ( $model );
	}
	
	/**
	 * Get the model for the field body.
	 * This method returns a string.
	 * 
	 * @return string
	 */
	public function getFieldBodyModel() {
		return $this->getValue ();
	}
	
	/**
	 * Get the (unencoded) value of this header.
	 * 
	 * @return string
	 */
	public function getValue() {
		return $this->_value;
	}
	
	/**
	 * Set the (unencoded) value of this header.
	 * 
	 * @param string $value        	
	 */
	public function setValue($value) {
		$this->clearCachedValueIf ( $this->_value != $value );
		$this->_value = $value;
	}
	
	/**
	 * Get the value of this header prepared for rendering.
	 * 
	 * @return string
	 */
	public function getFieldBody() {
		if (! $this->getCachedValue ()) {
			$this->setCachedValue ( $this->encodeWords ( $this, $this->_value ) );
		}
		
		return $this->getCachedValue ();
	}
}
